for the virus to evolve enough to render current vaccines, resistance, Cocaine become more plentiful—and more potent

The science: Mutations of the coronavirus are of concern but not surprise to scientists, and whether the British variant is indeed more transmissible has not yet been proved. Several experts urged calm, saying it would take years — not months — for the virus to evolve enough to render current vaccines impotent.

Cocaine in Britain has become more plentiful—and more potent 

https://econ.st/2vYrKPk





In the past, transportation ties with China had always been fancifully seen by politicians and businessmen as a potent prescription for Taiwan's economic ills. But it will take time to determine whether the opening of the direct links will actually benefit or hurt the country.
過去，三通一直被視為解救台灣經濟的藥單，政治人物與企業家望梅止渴；但真正大三通後，究竟是利多或空頭，還需要時間檢驗。

The Germs Are Potent. But So Is a Kiss.

By MANOJ JAIN, M.D The emergence of multidrug-resistant organisms is an unintended consequence of our use (and overuse) of antibiotics.

Spread of Malaria Feared as Drug Loses Potency

By THOMAS FULLER
The parasite that causes the deadliest form of malaria is showing the first signs of resistance to the best new drug against it.

re・sist・ance

--> ━━ n. 抵抗［反抗］ ((to)); （病気・細菌への）抵抗力; 反抗心; （時にthe R-） レジスタンス, 抵抗運動; 【電気】抵抗（器，装置）.
put up resistance to　…に抵抗する.
the line of least resistance　最も容易な方法.
resistance thermometer　【工】抵抗温度計.
⇒resist

resist 
verb
1 [I or T] to fight against something or someone that is attacking you:
The soldiers resisted (the enemy attacks) for two days.

2 [T] to refuse to accept or be changed by something:
The party leader resisted demands for his resignation.
He tried to run away from the police and was charged with resisting arrest.
The new hybrid crops are much better at resisting disease.

3 [T] to stop yourself from doing something that you want to do:
I can never resist temptation/chocolate/the urge to laugh.
[+ ing form of verb] She couldn't resist laughing at him in those clothes.

resistance
noun
1 [U] when something or someone resists:
resistance to disease
Government troops offered no resistance (to the rebels).
There's a lot of resistance (= opposition) to the idea of a united Europe.

2 [U] a force which acts to stop the progress of something or make it slower:
The car's speed was reduced by air/wind resistance.

3 [C or U] SPECIALIZED the degree to which a substance prevents the flow of an electric current through it:
Copper has (a) low resistance.

4 the Resistance an organization that secretly fights against an enemy that has taken control of its country

resistant 
adjective
1 not wanting to accept something, especially changes or new ideas:
Why are you so resistant to change?

2 not harmed or affected by something:
a stain-resistant carpet
a disease-resistant variety of tomato

resistor 
noun [C] SPECIALIZED
a part of an electrical circuit designed to produce a particular amount of resistance to the flow of current